MH Alpine Light 50 pack?

Any experiences with this pack? Mostly curious how close it is to the claimed 50l volume, how it carries heavily loaded and also stripped down. Thanks!

 So I think it comes a bit smaller than 50. Here is it compares to alpha FL 40. I put 6 water bottles, a 40 meter rope and a 70 meter rope into both. AL 50 carries bettter with the frame and padded hip belt. With the adjustable should strap, the pack is closer to my body than the FL. But it does feels a bit flicky and I don't like the hip belt pocket that much. And its brain is huge TBH.

after a few try, the AL 50 is bigger than FL 40. Ina sense that it is wider